The upcoming "Lord of the Rings" TV show is set to become the most expensive series in television history.

Amazon bought the rights to the series last November, shelling out $250 million to J.R.R Tolkien's estate. But the combined total including casting, production, and visual effects is estimated to cost over $1 billion.

Netflix's "The Crown" previously held the title for the most expensive series, costing an insane $13 million per episode. The final series of HBO's "Game of Thrones" has a budget of $15 million per episode.

The show could be as successful as "Game of Thrones." HBO

Other details about the series are scarce, and it's unclear whether Peter Jackson, the director of "Lord of the Rings" film trilogy, will be involved in the show. Check back for updates as they come.